A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5985-01-397-0222
NSN 5960-01-494-7960
NSN 5945-01-398-1213
NSN 6150-00-925-2465
NSN 6105-00-014-3932
NSN 6220-00-429-6652
NSN 5996-01-538-9357
NSN 5975-00-384-8077
NSN 6645-01-290-3930
NSN 5960-00-553-7338
NSN 5960-01-103-5476
NSN 5985-01-038-4186